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Ashburtonite

Posted by Rock Currier  
avatar Ashburtonite
May 26, 2009 07:48PM
©


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This article is a place holder and needs someone to take it in hand and finish the first draft. If you would like to take this article in hand, leave a reply message below or contact Rock Currier via private message by clicking on the PM button next to my name at the top of the article.



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This article is in a pre-construction phase.
Someone is needed to work on this article which contains a few preliminary notes.

1. The localities need to be brought into conformity with mindat locality strings if necessary, reversed and made bold.
2. If image links appear below they need to be embedded in the article. If none are present the Mindat image bank needs to be searched for images of this mineral and the better ones and their localities need to be placed in the article.
3. The captions for the images need to be added.
4. The images need to be tweaked so that they look nice. This last bit is tedious and requires patience and some little artistry.



Ashburtonite
Pb4Cu4[(OH)3|Cl|(HCO3)4|Si4O12] · H2O Tetragonal
Ashburtonite, Ashburton Downs, Pilbara Region, Australia ~4cm wide© Paul Bongaerts


*Ashburtonite Micro and rare species collections.
Pb4Cu42+Si4HO12(HCO3)4(OH)9Cl
Australia
Western Australia, Capricorn Range, Ashburton Downs, Anticline Prospect, Mineral Claim 84. The claim is located 11.2 kilometers west-southwest of the Ashburton Downs homestead. “It occurs as clusters of clear blue, prismatic crystals up to 0.4 mm long. Associated minerals include diaboleite, duftite, beudantite, caledonite, plattnerite, cerussite, malachite and brochantite. The mineral has a vitreous luster and light blue streak. …Ashburtonite occurs as very small crystals, distinctly blue with no greenish tint, up to 400 μm long and 30 μm wide clustered in aggregates up to 20 mm in diameter…The specimens used in the present description were collected by Blair Gartrell. …Gartrell had noted several rare species and a number of unusual minerals that he could not identify. His astute observations have now resulted in the description of two new mineral species: gartrellite… named in his honor, and ashburtonite, described in the present paper. …The Anticline prospect…has an assemblage of secondary minerals…probably derived from a primary sulfide assemblage.”1
1. American Mineralogist, Vol. 76, p. 1701-2
2. Nickel, E.H. & Gartrell, B. J. (1993): Secondary Minerals from Ashburton Downs, Western Australia. Mineralogical Record 24: 203-216,218.


Click here to view Best Minerals A and here for Best Minerals A to Z and here for Fast Navigation of completed Best Minerals articles.

Rock Currier
Crystals not pistols.



Edited 4 time(s). Last edit at 12/27/2012 08:12AM by Rock Currier.
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